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. 2018 Aug 9;19(1):65. doi: 10.1186/s10194-018-0897-4

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© The Author(s). 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 1 — Electrophysiological measures by paired-pulse TMS recorded from migraine without aura (MwoA) patients and healthy volunteers (HVs) after stimulation of the left primary motor cortex. a Mean values of intracortical facilitation (ICF) determined as the ratio of the average amplitude of the conditioned MEPs to the average amplitude of unconditioned test MEPs. *Significant variation (p = .014) compared to values recorded in the HVs. b and (c) Mean values of short intracortical inhibition (SICI) and long intracortical inhibition (LICI) determined as the ratio of the average amplitude of conditioned MEPs to the average amplitude of unconditioned test MEPs. Error bars indicate standard errors of means (SEs)